network cisco ccna gns3 certification arteq

network cisco ccna gns3 certification arteq
a network runs through it

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Sunday, November 4, 2012

packet types, eigrp v ospf...


hello: periodically multicast, identifies neighbors, forms adjacency

update: sent only for change event, to multicast in link cost. sends unicast upon new neighbor discovery

ack: acknowledgement of an update

query: query of neighbor routes (after 16 attempts at multicast, unicast is then sent

reply: (unicast) answers query


hello: discover, build and mantain adjacencies, sent to

dbd: a summary of the lsdb; used to verify like lsdb between neighbors

lsr: requests link state information from neighbor

lsu: sends requested link state information

lsack: reliable acknowledgement

they are not so different...

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